Rewrite the polynomial in descending order.Rewrite a3 + 7a2b + 4b3 - 6ab2 in descending powers of b.

A. 4b3 - 6ab2 + 7a2b + a3
B. a3 + 7a2b - 6ab2 + 4b3 
C. 4b3 + 7a2b - 6ab2 + a3
D. 4b3 + 6ab2 + 7a2b + a3

Answer: A

Mathematics

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B. -  cosh e5x  + C
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D.  e5x cosh e5x  + C

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A. Simple B. Closed C. Neither D. Both

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A. b10 B. b8 C. b9 D. b24

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Evaluate the expression.4

A. 16
B.
C. - 
D. -16

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